Siemens Energy, Inc.

Siemens Westinghouse Power Corporation

Westinghouse Electric Corporation

Siemens Aktiengesell Schaft

Siemens Power Generation, Inc.

Charles Crawford Moore

James Alan Bauer

Michael J Metala

Mark William Fischer

Paul John Zombo

Paul Guenther

Harry L Sill

Michael Charles Moore

George F Dailey

Michael R Vindler

Michael A Hall

El Mahjoub Rasselkorde

Michael F Fair

Ira J Campbell

Robert F Wasileski

Johnny R Dickson

Timothy J Garner

Xabier A Sanjuan

Johnny J Anderson

Oran Leroy Bertsch

James Alford

Joseph T Beuten

Olaf Froede

John D Starceski

Richard E Saul

Brian W Smith

John Trosiek, Jr

Waldemar Spruda

A tool system for tightening a retrightenable wedge system in a slot of a generator stator core is presented. The tool system includes a carriage assembly and a wedge tool assembly that is pivotally coupled to the carriage assembly. The carriage assembly includes motorized drives that axially moves the tool system along the slot and holds the tool system on the slot at an axial position. The wedge tool assembly includes a torqueing socket to tighten the retightenable wedge assembly in the slot. The torqueing socket is driven by a worm gear arrangement.

Tool system for tightening retightenable wedge system in slot of generator stator core

System, methods, and devices for inspecting generator rotor slot wedges in-situ are provided. The system includes a controller operably connected to a remote-control carriage for transmitting control signals and receiving data. The carriage includes a drive module for moving the carriage into an inspection area, e.g., through an air gap between the rotor and stator, and an inspection module operable to inspect a rotor wedge surface. The inspection module includes a jack assembly and a transducer assembly. The jack assembly is operably connected to the transducer assembly, and configured to elevate the transducer assembly to the rotor wedge surface for inspection.

Systems and apparatus for inspection of electric generator rotor slot wedges in-situ and methods of using the same

A nut support tool for assembly and disassembly of a nut on a vertically extending bolt assembly located on a casing. The bolt assembly including a lower nut engaged on a lower end of a threaded shaft. The nut support tool includes a vertical span assembly having an upper support member located at an upper end thereof for engagement on an upper end of the bolt assembly, whereby the nut support tool is supported from the bolt assembly upper end with the vertical span structure extending parallel to the bolt assembly. An arm assembly extends from a lower end of the vertical span assembly and includes a lower guide pin for engagement with an access opening formed in a lower surface of the lower nut. The arm assembly is configured to support the lower nut, and to swivel relative to the casing.

Turbine extension nut support tool

An inspection head where non-destructive inspection is structured to fit into narrow spaces, and to accurately and repeatably move an inspection probe along a surface to be inspected. Movement of the inspection head along an X, Y, Z, &#x398;, and &#x3a6;-axis is precisely controlled by individual drive mechanisms.

Nondestructive inspection heads for components having limited surrounding space

A remote-controlled dynamoelectric machine maintenance vehicle that can fit and travel within the air gap between a stator and rotor of a dynamoelectric machine. The maintenance vehicle has an effectuator that can remotely attach to an adjustable wedge within a coil slot of the stator and tighten the wedge in position and then move on to repeat the process until all the wedges on the stator are secured.

Automated remote carriage for tightening generator wedges

A remote-controlled dynamoelectric machine inspection vehicle that can fit and travel within a narrow air gap between a stator and rotor of a dynamoelectric machine. The inspection vehicle has an effectuator that can remotely activate a hammer driven by a high pressure pneumatic three-stage miniature piston that propels the hammer against a stator slot wedge creating an impact force that causes the wedge to vibrate. The vibrations are sensed to determine the tightness of the wedge.

Apparatus for impact testing for electric generator stator wedge tightness

An inspection carriage provides for remote inspection of the Z-shroud and snubber regions of the blades of a steam turbine, while the blades remain in the turbine. The carriage includes a non-destructive inspection probe such as a meandering wave magnetometer probe or eddy current probe mounted on a slider, so that the probe may be moved along a radial axis, skew axis, axial axis, and rotation axis. Cameras are provided on the carriage so that the probe may be remotely guided into the region to be inspected.

Inspection carriage for turbine blades

A remote controlled inspection vehicle provides interchangeable modules, permitting the vehicle to be easily configured to perform a wide variety of tasks. The vehicle includes at least one frame module having a pair of drive modules on either side. Each drive module includes a continuous track surrounding a permanent magnet, and is dimensioned and configured to pivot around its longitudinal axis. The frame modules are dimensioned and configured to be hingedly secured to other frame modules, end effectors including various sensors for performing inspections, and tail units to assist in placing the vehicle in the desired environment.

Remote controlled inspection vehicle utilizing magnetic adhesion to traverse nonhorizontal, nonflat, ferromagnetic surfaces

A remote-controlled vehicle and method for performing a plurality of tasks in a location generally inaccessible to humans are provided. The vehicle may include a propulsion frame, and a platform attached to the frame or integral therewith for supporting an interchangeable accessory selected from a set of distinct interchangeable accessories. Each distinct interchangeable accessory may be configured to perform a distinct operational task. The platform includes at least one mechanical power takeoff, and each accessory includes at least one mechanical power receptor configured to interface with the mechanical power takeoff for coupling mechanical energy to the accessory. The platform constitutes a universal platform for the set of distinct interchangeable accessories.

Interchangeable accessories for a remote controlled inspection vehicle

A self-aligning turbine disc inspection apparatus ( ) for positioning a non-destructive examination sensor ( ) proximate the disc web surface ( ) of a turbine rotor assembly ( ). The apparatus supports the sensor at a proper height above a support surface ( ) while simultaneously providing passive freedom of movement in X, Y and theta directions so that the sensor is free to follow the slight movements of the web surface as the rotor assembly is rotated on a test stand. The freedoms of movement are provided by a first sled ( ) rolling on a base ( ), by a theta alignment assembly ( ) rotating on the first sled, and a second sled ( ) sliding on the theta alignment assembly. A vertical drive assembly ( ) attached to the second sled provides a selectable height. The sensor may be moved across the disc web surface by a motorized slide ( ) attached to a head assembly ( ) attached to the vertical drive assembly. A radial centering assembly ( ) makes contact with the rotor assembly at two spaced-apart points to ensure that the inspection apparatus is positioned at a bottom-dead-center location.

Self-aligning turbine disc inspection apparatus

An inspection apparatus ( ) for remote inspection of the trepan radius area ( ) of the inlet sleeve ( ) of a steam turbine ( ). The apparatus ( ) provides a sealed volume ( ) between a pair of inflatable bladders ( ) for the introduction of a liquid couplant for the immersion of ultrasonic transducers ( ). A laser line generator ( ) generates a beam of light visible through camera ( ) which impinges upon the inlet bell seal ( ) when the apparatus ( ) is in a proper inspection position within the inlet sleeve ( ). Guide vanes ( ) provide centering and generate an insertion force during air assisted insertion of apparatus ( ). Transducers ( ) are indexed axially and circumfretially by the independent rotation of axial drive gear ( ) and longitudinal drive gear ( ) engaged with a pattern of gear teeth ( ) formed as a combination of circumferential spur gear teeth and axial rack gear teeth cut into a single surface of a spline shaft ( ).

Steam turbine inlet sleeve inspection apparatus and method

A nondestructive inspection device and a method of monitoring a defective condition in a rotating member of a combustion turbine engine using a nondestructive inspection device is presented. The nondestructive inspection device includes a sensor for monitoring the rotating member and a holder assembly for positioning the sensor near the rotating member without disassembling the combustion turbine engine. The holder assembly is capable of interchangeably positioning either an ultrasound transducer or an eddy current sensor. Signals indicative of the monitored condition are recorded and compared to a signal representation generated from a reference standard having a known defect so that a defective condition can be ascertained. The location of a defective condition is ascertained by using a magnetic belt having a plurality of magnets wrapped around the rotating member and an additional sensor to detect the magnets as they rotate. A signal indicative of the detected magnets is recorded along with the signal indicative of the monitored condition so that the angular position of the rotating member can be correlated with a detected defect.

Nondestructive inspection device and method for monitoring defects

The present invention provides an eddy current sensing device capable of in-situ operation within a high temperature and high vibration environment of a combustion turbine engine. The eddy current sensing device is preferably utilized in an eddy current sensing system for monitoring crack formation and displacement of rotating members of the combustion turbine engine. The method according to the present invention provides inducing eddy currents in the rotating member, detecting the eddy currents, providing a signal indicative of the detected eddy currents, filtering the signal based on the condition to be monitored and evaluating the filtered signal to determine whether the condition, such as the formation of a crack in the surface of the rotating member exists, and if so, determining whether the condition is critical or routine.

NDE eddy current sensor for very high scan rate applications in an

A pan and tilt apparatus for supporting a miniature television camera and an adjustable lens is disclosed. A lens support is hinged to the pan and tilt apparatus for rotation about an axis parallel to the central axis of the lens. The camera is supported by the lens when attached thereto. Parallel mounted drive trains in a drive housing operate the pan and tilt functions and endless slippable drives in the lens support are operative for providing powered lens adjustments.

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Hibbs, PA, United States of America

Charles Crawford Moore